.login-dog{
  width: 400px;
  height: 200px;
  text-align: center;
  margin-top: 10px;
  margin-bottom: 20px;
  position:absolute;
  top:50%;
  left:50%;
  transform:translate(-50% , -50%);
  border: 1px solid #dcdcdc;
  border-radius: 20px;
}